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Pages:
3 pages/≈825 words
Sources:
1 Source
Level:
APA
Subject:
Life Sciences
Type:
Lab Report
Language:
English (U.S.)
Document:
MS Word
Date:
Total cost:
$ 10.8
Topic:

Radioactivity decay. Calculation of half life of the given samples in the experiment. (Lab Report Sample)

Instructions:

calculation of half life of the given samples in the experiment.
radiation delection by lead, paper and aluminium foils.

source..
Content:

Radioactivity decay.
Name
Course
Institution
Due date
Radioactivity decay.
Sample 1 – half- life 10s
Type of radiation – table 1
Protector

Paper

lead

Aluminum

Presence of radiation Detected.

Detection of radiation
Not detected /Yes detected

Yes detected

Not detected

Yes detected

Presence of Gamma radiation.

Observations.
From the experiment done, radiations emitted penetrate through aluminum foil and piece of paper. This radiation produced is stopped by the lead placed on the path of radiation. This type of radiation represents gamma radiation. Radiations produced by gamma particles penetrate a thin paper and aluminum foil and will only be blocked by the use of a thick lead. Radiations produced due to gamma particles usually have higher penetrating power compared to other radiations. This power enables the radiations to get through aluminum and piece of paper.
Table 2- 1st sample. Determining Half-life by a direct method. (Decay method)
Trials

Investigating distance
(cm)

Original Rate
When Time =0

Time taken when
Rate =1/2 R0

Time taken when
Rate=1/4R0

Time taken when
Rate=1/8R0

(i)

20

16000

10.0

20.0

30.0

(ii)

40

4481

...
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